3.0 cylinder heads interchangeable?

[boozer1966]

Anyone know if cylinder heads for a MCM 140/3.0 with casting numbers 2777770 and 2778954 are interchangeable?

 

[Scott Danforth]

1990 and older or 1991 and newer

 

[boozer1966]

Er, what?

 

[Scott Danforth]

block/crank/piston.etc. change in 1990 for the 1991 model year. so 1990 and older all interchange. 1991 and newer all interchange.

 

[Bondo]

Anyone know if cylinder heads for a MCM 140/3.0 with casting numbers 2777770 and 2778954 are interchangeable?

Ayuh,..... There's been subtle changes in those heads over the years, mostly to do with port sizes,......

But, I believe, they'll All interchange,.....

 

[boozer1966]

Thank you all.